A car air compressor

Abstract

The invention discloses a vehicular air compressor, comprising a screw air compressor main unit, an oil-air separation tank and an oil-air filter; the oil-air separation tank includes a tank body and a separation barrel arranged in the tank body, the separation barrel includes a barrel body having a V-shaped opening in the upper end, the open side of the barrel body in the V-shaped opening is provided with a first retaining edge mating with the inner wall of the tank body, the other side of the barrel body is provided with a second retaining edge mating with the inner wall of the tank body, the outer wall of the barrel body, the first retaining edge, the second retaining edge and the inner wall of the tank body enclosure an oil-air separation chamber around the barrel body, and one side of the barrel body at the second retaining edge is provided with a guide through hole through which the oil-air separation chamber is communicated with the inside of the barrel body. Oil and air are effectively separated by the oil-air separation tank, the oil content of compressed air delivered from the oil-air separation tank to the oil-air filter is decreased, the service life of the oil-air filter is prolonged, and cost of use is reduced.

Description

technical field [0001] The invention relates to the technical field of air compressors, in particular to an air compressor for vehicles. Background technique [0002] The compressed air required for vehicle braking, door opening and closing, suspension pedal lifting and other pneumatic devices in the car is provided by the on-board air compressor system. The traditional on-board air compressor is a reciprocating piston air compressor with a complex structure. It takes up a lot of space and is not suitable for new energy vehicles. For example, a screw air compressor for electric passenger cars disclosed in patent 200820169730.4 includes a screw air compressor main unit, a motor connected to the air compressor main unit, an air storage tank, an oil storage tank and an oil cooler, wherein the air storage tank and the oil storage tank It is integrated with the main engine of the air compressor to solve the problem that the existing vehicle air compressor takes up a lot of space...

AI Technical Summary

Problems solved by technology

However, the existing vehicle-mounted air compressors, especially the screw air compressors used for new energy electric vehicles, are mainly due to the incomplete separation of oil and gas in the oil-gas separation tank at the front end of the oil-gas filter, resulting in the output compression of the oil-gas separation tank after oil-gas separation. The oil content in the air is high, which in turn makes the filter load of the oil and gas filter heavier, resulting in a greatly shortened service life of the oil and gas filter, which requires frequent replacement and increases the cost of use

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